Mr Boyle said: "I think we should retake Sherlock Holmes. You look at the worldwide web and you will find that all the web businesses based round Sherlock Holmes are in London, they’re in Illinois, they are in Switzerland.
"Sherlock Holmes is a product of Scottish mind, born in Scotland, trained in Scotland.
"Why don’t we own him? It’s perfectly reasonable that you should have large businesses built round Sherlock Holmes in London, but if people want a whole range of things from academic thought to cheap souvenirs, we may as well do that.